include/net/ip6_route.h

   1 #ifndef _NET_IP6_ROUTE_H
   2 #define _NET_IP6_ROUTE_H
   3
   4 #define IP6_RT_PRIO_FW          16
   5 #define IP6_RT_PRIO_USER        1024
   6 #define IP6_RT_PRIO_ADDRCONF    256
   7 #define IP6_RT_PRIO_KERN        512
   8 #define IP6_RT_FLOW_MASK        0x00ff
   9
  10 #ifdef __KERNEL__
  11
  12 #include <net/flow.h>
  13 #include <net/ip6_fib.h>
  14
  15 struct pol_chain {
  16         int                     type;
  17         int                     priority;
  18         struct fib6_node        *rules;
  19         struct pol_chain        *next;
  20 };
  21
  22 extern struct rt6_info  ip6_null_entry;
  23
  24 extern int ip6_rt_max_size;
  25 extern int ip6_rt_gc_min;
  26 extern int ip6_rt_gc_timeout;
  27 extern int ip6_rt_gc_interval;
  28
  29 extern void                     ip6_route_input(struct sk_buff *skb);
  30
  31 extern struct dst_entry *       ip6_route_output(struct sock *sk,
  32                                                  struct flowi *fl);
  33
  34 extern int                      ip6_route_me_harder(struct sk_buff *skb);
  35
  36 extern void                     ip6_route_init(void);
  37 extern void                     ip6_route_cleanup(void);
  38
  39 extern int                      ipv6_route_ioctl(unsigned int cmd, void *arg);
  40
  41 extern int                      ip6_route_add(struct in6_rtmsg *rtmsg,
  42                                               struct nlmsghdr *,
  43                                               struct netlink_skb_parms *req);
  44 extern int                      ip6_del_rt(struct rt6_info *,
  45                                            struct nlmsghdr *,
  46                                            struct netlink_skb_parms *req);
  47
  48 extern int                      ip6_rt_addr_add(struct in6_addr *addr,
  49                                                 struct net_device *dev);
  50
  51 extern int                      ip6_rt_addr_del(struct in6_addr *addr,
  52                                                 struct net_device *dev);
  53
  54 extern void                     rt6_sndmsg(int type, struct in6_addr *dst,
  55                                            struct in6_addr *src,
  56                                            struct in6_addr *gw,
  57                                            struct net_device *dev,
  58                                            int dstlen, int srclen,
  59                                            int metric, __u32 flags);
  60
  61 extern struct rt6_info          *rt6_lookup(struct in6_addr *daddr,
  62                                             struct in6_addr *saddr,
  63                                             int oif, int flags);
  64
  65 /*
  66  *      support functions for ND
  67  *
  68  */
  69 extern struct rt6_info *        rt6_get_dflt_router(struct in6_addr *addr,
  70                                                     struct net_device *dev);
  71 extern struct rt6_info *        rt6_add_dflt_router(struct in6_addr *gwaddr,
  72                                                     struct net_device *dev);
  73
  74 extern void                     rt6_purge_dflt_routers(int lst_resort);
  75
  76 extern void                     rt6_redirect(struct in6_addr *dest,
  77                                              struct in6_addr *saddr,
  78                                              struct neighbour *neigh,
  79                                              int on_link);
  80
  81 extern void                     rt6_pmtu_discovery(struct in6_addr *daddr,
  82                                                    struct in6_addr *saddr,
  83                                                    struct net_device *dev,
  84                                                    u32 pmtu);
  85
  86 struct nlmsghdr;
  87 struct netlink_callback;
  88 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
  89 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
  90 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
  91 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
  92
  93 extern void rt6_ifdown(struct net_device *dev);
  94 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
  95
  96 extern rwlock_t rt6_lock;
  97
  98 /*
  99  *      Store a destination cache entry in a socket
 100  *      For UDP/RAW sockets this is done on udp_connect.
 101  */
 102
 103 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
 104                                      struct in6_addr *daddr)
 105 {
 106         struct ipv6_pinfo *np = &sk->net_pinfo.af_inet6;
 107         struct rt6_info *rt = (struct rt6_info *) dst;
 108
 109         write_lock(&sk->dst_lock);
 110         __sk_dst_set(sk, dst);
 111         np->daddr_cache = daddr;
 112         np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
 113         write_unlock(&sk->dst_lock);
 114 }
 115
 116 #endif
 117 #endif